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Evgen [1.6K]
3 years ago
8

You plug a string of 100 lights in series into a 120 V power outlet, and each light has a resistance of 3.00 _. If each light ha

s a power rating of 0.50 W, what will happen?
The string will remain lit.

All the lights will go out.

Only one light will go out.

You cannot predict what will happen.
Physics
1 answer:
UNO [17]3 years ago
6 0
V = IR

By completing the equation, i found that the total power equation is : 4.8, 
Which means that it's not exceed the power rating.

So i believe the answer would be :  The string will remain lit

hope this helps
You might be interested in
3.7. A dog searching for a bone walks 3.50 m south, then 8.20 m at an angle 23.1 degrees north of east, and finally 15.0 m west.
andriy [413]

Answer:

Explanation:

We shall represent displacement of dog in vector form , in terms of i , j , i representing east  and  j representing north .

Dog travels 3.5 m south .

Displacement D₁ = - 3.5 j

then dog travels 8.2 m , 23.1 degree north of east

Displacement D₂ = 8.2 cos23.1 i + 8.2 sin23 j

D₂ = 8.2 cos23.1 i + 8.2 sin23.1  j

= 7.54 i + 3.22 j  

Third displacement

D₃ = - 15i

Total displacement = D₁ + D₂ + D₃

= - 3.5 j + 7.54 i + 3.22 j  -15i

= - 7.46 i - 0.28 j

Magnitude of displacement = √ ( 7.46² + .28²)

= √(55.65 + .08 )

= 7.46 m

b ) Direction of displacement

If Ф be angle , displacement makes with west direction

TanФ =  .08 / 55.65 = .00143

Ф = .082 degree south of west or almost west .

From east , this angle = 180 + .082 = 180.082 , counterclockwise .

5 0
2 years ago
Help me plsssss<br> help me plsssss
Zepler [3.9K]
Answer:


It is d. 0.80
Trust me i got it right took it and got it right
4 0
2 years ago
Higher energy efficiency is desirable because
natita [175]
Because less energy is being wasted. non-renewable resources will last longer.
the cost is kept lower. hope it helps :)
6 0
3 years ago
Jason places his economics book (3 kg) on a level table. He then puts his calculus book (5 kg) on top of the economics book, the
lilavasa [31]

Nothing is accelerating ... it's not even moving. Everything is just sitting there. 
That right there tells you that the forces are balanced wherever two things meet,
otherwise something would be accelerating.

At each level where two things meet, there are 2 forces:

-- The gravitational force ... the weight of everything above that place,
and
-- The upward force, exerted by everything below that place. 

Here is the stack:
_____________
| Physics ... 2kg |      weight = M G = 2 x 9.8 = 19.6 newtons
---------------------
|Calculus ..5 kg |      weight = M G = 5 x 9.8 = 49 newtons
---------------------
|Econ . . . .3 Kg |      weight = M G = 3 x 9.8 = 29.4 newtons
==================
-------- (Table) ----------
/                                  \

a).  Surface where the table meets the Economics book.
Weight of everything above = (29.4 + 49 + 19.6) = 98 newtons
Upward force exerted on the Econ book by the table = 98 newtons.

b). Surface where the Econ book meets the Calculus book.
Weight of everything above = (49 + 19.6) = 68.6 newtons.
Upward force exerted on the Calc book by the Econ book = 68.6 newtons.

c).  Surface where the Calculus book meets the Physics book.
Weight of everything above = 19.6 newtons.
Force exerted on the Physics book by the Calc book = 19.6 newtons.
6 0
3 years ago
I have 2 questions
fenix001 [56]
1. your ear drums feel like they pop when you go deep enough under water. kinda feels like bricks. and it hurts if you stay under to long.

2. this could be a reaction from fluid pressure yes. can could be avoided by getting wax ear plugs however even with ear plugs going deep enough under water can still make your ears "pop" due to pressure but at high surfaces it would avoid that.

Please rate me brainliest?

8 0
3 years ago
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